Connecting Low Dc Power - Siemens SIMATIC NET Installation Manual

3.
4.
2.6.2

Connecting Low DC Power

RUGGEDCOM RS900F's equipped with 24 or 48 V power supply inputs feature reverse
polarity protection and dual power supply inputs allowing the device to accept
redundant connections to a single DC power supply.
To connect a low DC power supply to the device, do the following:
Note
Torque all terminal connections to 0.6 N·m (5 lbf-in).
1.
RUGGEDCOM RS900F
Installation Manual, 04/2021, C79000-G8976-1350-07
2 2
1 3 1
Positive Terminal
1
Negative Terminal
2
Surge Ground Terminal
3
Braided Ground Cable
4
Figure 2.7 Terminal Block Wiring – Dual DC Power Supply Inputs
Connect the negative wire from the power source to the negative/neutral (-/N)
terminal on the terminal block.
Connect the ground wire from the power source to the chassis groun terminal
on the terminal block.
Secure the power terminal block to the device.
Installing the Device
2.6.2 Connecting Low DC Power
4
± ±
± ±
17